This part specifies the technical conditions for gearboxes for off-grid wind turbines. This standard applies to single-stage and two-stage cylindrical gearboxes with a low-speed stage center distance of 4 ≤ 300mm for off-grid wind turbines with a rotor swept area of ​​less than 40 square meters, and also applies to single-stage planetary gearboxes with a low-speed stage slewing frame radius R ≤ 100mm. JB/T 10400.1-2004 Gearboxes for off-grid wind turbines Part 1: Technical conditions JB/T10400.1-2004 Standard download decompression password: www.bzxz.net

JCN27.150
Machinery Industry Standard of the People's Republic of China
JB/T10400.1—2004
Gearbox of off-grid wind turbine generator systemPart I: Technical conditions
Published on February 10, 2004
Implemented on June 1, 2004
Published by the National Development and Reform Commission of the People's Republic of ChinaPrevious document
3 Long-term requirements
3.1 General technical requirements
3.3 Gearbox manufacturing technical requirements
3.1 Gearbox manufacturing technical requirements
3.4 ​​Assembly technical requirements||t t||Stealing and inspection
Test method
Packaging, transportation and storage
Appendix A (Appendix to the specification) Technical requirements for heat treatment of gears A.1 Technical requirements for quenched and tempered step wheels
4.2 Technical requirements for tempered balance wheels
A.3 Technical requirements for deep-friction gears
4 Requirements for tooth thickness tolerance of carbon-fired step wheels
.. Requirements for limit deviations of the same standard
ID/T 1C400 1—2004
JBT10400 Gearbox for off-grid wind turbine is divided into two parts: Part 1: Technical conditions Part 2: Test methods.
Part 3.
This part is the first announcement.
/110405.1—2004
The writing format and rules of this part conform to 811.1~2004
The format and rules of this part conform to 811.1~2004 Part 1: Standard structure and test method,
The appendix 4 of this part is the white mouth of the white mouth of the machinery industry federation. This part is under the jurisdiction of the National Wind Machinery Standardization Technical Committee. The unit of this part is: Inner Mongolia Tianli Wind Power Machinery Factory. The person in charge of this part: Kenzhanxia, ​​Shuiruo, Nutawen 1 Scope||tt ||JI/T10400.:—2c04
Gearbox for off-grid wind turbine generator set Part 1: Technical conditions This part specifies the technical conditions for gearbox of off-grid wind turbine generator set. This part applies to the off-grid wind turbine generator set with low speed stage: single-line two-stage gearbox, and the value of single-stage planetary gearbox for low speed stage rotating frame radius R1 (Hmm). 2 Normative references
The following documents are referenced by this part or are the terms of this part. All modifications (including registration errors) or subscribed versions after the date of this part shall not apply to this part. However, the parties involved in the discussion based on this part may use these new versions. The latest version of this part is applicable to this part. G0/T191—2000 Packaging and Express Transport Pictorial Marking (e9VS07RO:1997) 12-0 General rules, definitions, symbols and graphic representations of shape and position tolerances 111:16 Determination of mechanical motion of gears during acceptance tests GTO
GBT195—2
Rate of open line return column tooth drag 2[501128:1997G:B/T 13384—1992
Technical conditions for Kaidian product packaging
JB:T79291999
Gear transmission device code
JB/! 833!~-2001
JR/79RS32001
Method for lubricating industrial idle gears
Temperature-controlled gear speed sensor
JB/T90501-1997
Technical conditions for gearbox connectors
1B/-104003—2274 Gearbox for off-grid wind turbine generator system Part 2: Test flow 3. Technical requirements
3.1 Overall technical requirements
3.1 The gearbox works normally under the following conditions: a) The ambient temperature is -40℃~50℃: When the ambient temperature is low Antifreeze type lubricant should be added: 5, load is dusty or hidden, continuous operation or intermittent operation:) Applicable work order can be soft
) High speed shaft shows high speed not exceeding? 000mmin: The circumference of the inner wheel including the open line grinding column does not exceed 2m, the commercial speed of the two gears in the open line is small: 5m/s:
) The working environment is virtual and corrosion-free,
3.1.2 The center distance of the special box 1, the transmission efficiency, the inner width coefficient, the center and other quantities of this set should meet the assumptions of 8/T8851, 3.1.3 The gearbox is allowed to withstand a short-term load of 1.5 times the rated power. 3.1.4 The service life of the gearbox shall not be less than: 5 years. 3.1.5 The precision of gear pair shall not be less than the micro-standard in Table 1. The first and second tolerances of gear transmission shall be one level higher than those in Table 1. 14
Table 1 (thread)
Step line
In the theory of reverse tooth and same tooth
87—7
According to CB/710045.1-2—2001
The toothed gear
7:-6--5
The tooth surface of the gear pair with broken tooth surface should not be lower than the specified value of 2
Exhaust the wheel
And the gear
1: Under slight braking, the contact point is determined as follows: tooth ratio
tooth surface change point%
according to tooth length
Note 2: The distribution position of the contact point should be close to the tooth surface, and no contact is allowed at the tooth top and end edge. Design 3: For gear pairs with tooth length modification and tooth top replacement, the distribution position and size of the contact point can be determined by the gear pair, and the size of the contact point should be 90% of the value in the table.
3.1.7 The minimum normal limit side of the gear pair shall comply with the provisions of Table 3. Table 3
Minimum limit side
112-125
>:25 ~IXIH
128-16D
1811--75
148---185
3.t.8 The gearbox should not have oil leakage or oil submersion, and dirt and water should not be filtered into the gearbox. 3.1.9 The cleaning and inspection methods of the gearbox should comply with the provisions of IB 7429. 3.1.10 The position tolerance of the anchor bolt hole axis shall not be greater than 0.2 (D-α) mm, where: D is the nominal diameter of the anchor bolt hole, in m. The diameter of the ground pinion, unit: mr.
163-210
3.1.11 The materials used for the main parts of the gearbox (including wheels, shafts and housing, etc.) shall meet the requirements of relevant material standards and the manufacturer's certification.
For gearboxes with hardened gear surfaces, the rated transmission power and thermal power shall be calculated for all gearboxes. 3.1.12
The sliding block used in the gearbox shall meet the relevant provisions of JT/T8831. The meshing efficiency of each stage of the circular gear pair shall not be less than 0.9$, and the meshing efficiency of each stage of the cylindrical gear pair shall not be less than 1.97. The gearbox shall be equipped with a ventilator to ensure the pressure balance inside and outside the box. 3.1.15
The noise of the gearbox shall not be lower than Class C specified in GB/8543-1987: 3.2 Technical requirements for gear manufacturing
3.2.1 The precision of the external gear shall not be lower than Class 5 specified in 0B10095, and the precision of the internal gear shall not be lower than Class 6 specified in GH/110J5: The roughness R of the gear shall comply with the provisions of Table 4. 3.2.2
Public level
Dividing surface diameter
2·175--40U
125--400
125--400
125--40C
1The values ​​in the table are applicable to hardened inter-tooth gears.
Let 2: The clothing selected by the oxidation gear wants to love degree R1.6L table
JR/T104051--2004
Damocha
J74* h1
3.2.3 The inner pre-rimming of the submerged gear should be done. The inner rolling wheel should be trimmed with a hob. 3.2.4 The tooth shaping of the grinding gear should be done on the other wheels. See Figure .an
4=4Fg-20
Tooth shape quantity, unit:
FTooth error allowable value, unit:
Normal module, unit: mF:
2——Head light tooth width, unit: m
2,—Big gear tooth width, unit:
Big step wheel width difference, unit: That is: Ah=h;—h2
The final shape length between small gear teeth, unit: a
325For the filter treatment index of the theory, please see Appendix A. 3.3 Box body manufacturing technology core
3.3.1 The box body can be made of castings or steel joints. 3.3.2 The transmission parts and welded parts should be processed internally.
3.3.3 The box body including the table is 6.3m long and the required parallelism is GTt18:996.
3.3.4 The maximum deviation of the gear pin bearing center and the parallelism of the shaft cable should meet the requirements of T950.1. ,:13
JB/T104001-2094
33 The body should be close to the separation surface, and the width should be one-third of the required width. 3.3 The box body should not have oil stagnation and static phenomenon. 3.4 Assembly technical requirements
3.4.1 The inner end face of the shaft should be close to the shaft shoulder or the fixed distance bed, and the difference should not exceed 0.05mm. 3.4.2 The bearing interval should be adjusted by the control or sample. 3.4.3 Check the minimum rigid gap and contact spot of the gear pair. 3.4.4 The inner peak of the box cover and the non-additive surface inside the pin body are all painted clean, and the body, box cover and other external parts are all painted with primer and topcoat. The bearings should be filled with sufficient grease. 3.4.5 The gears should be tightened according to the specified preload. The preload value is as follows. Table 5
Screw diameter mm
Torque hand torque
1511+3
Note: The strength of this table is 3.R. When the end bolt grade is 5.6E, the number is not marked as 047: Forging degree is 10, then multiply by 1.41: When the strength grade is 17.9, then multiply by 1.69. 4 Test and inspection
3.1-3.4 The technical requirements should be qualified. Individual certificates shall be issued for qualified products. 6 Test methods
All gearboxes shall be tested in accordance with the provisions of JDT10400.2. 6 Packaging, transportation and storage
6.1 The outer surface of the gearbox shaft extension shall be coated with anti-rust grease, and the gearbox shall be packed tightly with rails, or other protective measures shall be adopted. 6.2 The packaging, storage and transportation of the gearbox shall comply with the provisions of GB/T13384 and GB/T791. 6.3 The random documents shall be packed in plastic and then packed into wooden boxes, and the contents include a! Complete set delivery and packing list
b) Certificate of qualification:
c) Installation and use instruction card.
A.1 Technical requirements for quenched and tempered gears
A.1.1 Tooth surface hardness:
1: The hardened and tempered gear is 283HBS
(Normative Appendix)
Technical requirements for heat treatment of gears
h) The hardness value of medium-hardened and tempered gears is 360FrB3. The hardness value should be selected according to the plasticity value. A.1.2 For gears, the requirements for mechanical properties and non-deep labor of materials shall be added. A.2 Technical requirements for gears
JR/T19400,1-2004
A.2,1 Tooth surface hardness: SB[1RC~·62I[RC, SSI IRC~.6011RC, 52FIRC~-5HRC.<4HRC:-~SHRCA.22 Effective cracking depth: 10.:~2)×month, in mm. The effective hardening layer depth difference is 4% of the effective hardening layer depth and is not less than 0.Jmm.
A.2.3 Gear core hardness: 30HKC--40HRC. A.2.4 Gear can be cracked:
A.2.5 Important gears can increase material performance test requirements. A.3 Technical requirements for induction gears
A.3.1 Tooth surface hardness: 48HRC--5GHR, important gears can take 50HRC--6HRC. A.3.2 Effective hardened layer depth of tooth surface: (0.15--0.35) x 1., unit: mm, effective hardened layer depth deviation can be not specified, important gears should be 15% of effective hardened layer depth, A.3.3 Bottom strength: should be greater than 40HRC, vertical gears should be greater than tSIIR tooth bottom hardened layer depth (0.1 ~0.3) > nl unit: mm
A.3.4 Core quenching and tempering hardness: 25HRC--HRC. A.3.5 Tooth surface hardening:
2.3.6 Important gear materials should be subjected to mechanical property tests. A.4 Requirements for the tolerance of carbon steel gear teeth
The tolerance of carbon steel gear teeth produced in single piece or small batch can be selected according to Table A.1. Table A.1
According to the relevant type
large and small gears are used as reference
small and large gears are used as reference
4.5 Requirements for the limit deviation of the thickness of planetary teeth in the same group
Large and small gears
The normal length tolerance An:
The limit deviation of the thickness of the planetary gears should be consistent as much as possible, and the relative limit deviation of each planetary gear should be kept within D.02mm~0.05.3 The random documents shall be packed in plastic and packed into wooden boxes, and the contents include a) complete set delivery and packing list b) certificate of conformity c) installation and use instruction card. A.1 Technical requirements for quenched and tempered gears A.1.1 Tooth surface hardness 1: 283HBS for quenched and tempered gears (normative appendix) Technical requirements for heat treatment of gears h) 360FrB3 for medium hardened and tempered gears. The hardness value shall be selected according to the plastic value. A.1.2 For gears, the requirements for mechanical properties and non-deep labor shall be added. A.2 Technical requirements for gears
JR/T19400,1-2004
A.2,1 Tooth surface hardness: SB[1RC~·62I[RC, SSI IRC~.6011RC, 52FIRC~-5HRC.<4HRC:-~SHRCA.22 Effective cracking depth: 10.:~2)×month, in mm. The effective hardening layer depth difference is 4% of the effective hardening layer depth and is not less than 0.Jmm.
A.2.3 Gear core hardness: 30HKC--40HRC. A.2.4 Gear can be cracked:
A.2.5 Important gears can increase material performance test requirements. A.3 Technical requirements for induction gears
A.3.1 Tooth surface hardness: 48HRC--5GHR, important gears can take 50HRC--6HRC. A.3.2 Effective hardened layer depth of tooth surface: (0.15--0.35) x 1., unit: mm, effective hardened layer depth deviation can be not specified, important gears should be 15% of effective hardened layer depth, A.3.3 Bottom strength: should be greater than 40HRC, vertical gears should be greater than tSIIR tooth bottom hardened layer depth (0.1 ~0.3) > nl unit: mm
A.3.4 Core quenching and tempering hardness: 25HRC--HRC. A.3.5 Tooth surface hardening:
2.3.6 Important gear materials should be subjected to mechanical property tests. A.4 Requirements for the tolerance of carbon steel gear teeth
The tolerance of carbon steel gear teeth produced in single piece or small batch can be selected according to Table A.1. Table A.1
According to the relevant type
large and small gears are used as reference
small and large gears are used as reference
4.5 Requirements for the limit deviation of the thickness of planetary teeth in the same group
Large and small gears
The normal length tolerance An:
The limit deviation of the thickness of the planetary gears should be consistent as much as possible, and the relative limit deviation of each planetary gear should be kept within D.02mm~0.05.3 The random documents shall be packed in plastic and packed into wooden boxes, and the contents include a) complete set delivery and packing list b) certificate of conformity c) installation and use instruction card. A.1 Technical requirements for quenched and tempered gears A.1.1 Tooth surface hardness 1: 283HBS for quenched and tempered gears (normative appendix) Technical requirements for heat treatment of gears h) 360FrB3 for medium hardened and tempered gears. The hardness value shall be selected according to the plastic value. A.1.2 For gears, the requirements for mechanical properties and non-deep labor shall be added. A.2 Technical requirements for gears
JR/T19400,1-2004
A.2,1 Tooth surface hardness: SB[1RC~·62I[RC, SSI IRC~.6011RC, 52FIRC~-5HRC.<4HRC:-~SHRCA.22 Effective cracking depth: 10.:~2)×month, in mm. The effective hardening layer depth difference is 4% of the effective hardening layer depth and is not less than 0.Jmm.
A.2.3 Gear core hardness: 30HKC--40HRC. A.2.4 Gear can be cracked:
A.2.5 Important gears can increase material performance test requirements. A.3 Technical requirements for induction gears
A.3.1 Tooth surface hardness: 48HRC--5GHR, important gears can take 50HRC--6HRC. A.3.2 Effective hardened layer depth of tooth surface: (0.15--0.35) x 1., unit: mm, effective hardened layer depth deviation can be not specified, important gears should be 15% of effective hardened layer depth, A.3.3 Bottom strength: should be greater than 40HRC, vertical gears should be greater than tSIIR tooth bottom hardened layer depth (0.1 ~0.3) > nl unit: mm
A.3.4 Core quenching and tempering hardness: 25HRC--HRC. A.3.5 Tooth surface hardening:
2.3.6 Important gear materials should be subjected to mechanical property tests. A.4 Requirements for the tolerance of carbon steel gear teeth
The tolerance of carbon steel gear teeth produced in single piece or small batch can be selected according to Table A.1. Table A.1
According to the relevant type
large and small gears are used as reference
small and large gears are used as reference
4.5 Requirements for the limit deviation of the thickness of planetary teeth in the same group
Large and small gears wwW.bzxz.Net
The normal length tolerance An:
The limit deviation of the thickness of the planetary gears should be consistent as much as possible, and the relative limit deviation of each planetary gear should be kept within D.02mm~0.05.
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